Has Saravanan Valliappan, MD received payments from drug or device companies?

Yes. Drug and device makers reported $10,198 in general payments to Saravanan Valliappan, MD across 121 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Saravanan Valliappan, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Saravanan Valliappan, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Saravanan Valliappan, MD

Diagnostic Radiology · Las Vegas, NVNPI 1003805045

Payments from drug & device makers

What this record shows

Almost everything reported here is food and beverage — 91.7% of the total across 121 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 16 manufacturers reported payments, led by Boston Scientific at 41.2% of the total. Reporting peaked in 2024 at $2,997 and has fallen 65.8% since, to $1,025 in 2025. Among diagnostic radiology clinicians in NV with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$10,198in general payments, 2019–2025

Across 121 payments — averaging $84.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Boston Scientific$4K
Sirtex Medical Inc$2K
Trisalus Life Sciences, Inc.$1K
Biocompatibles, Inc.$822
Penumbra, Inc.$650
Siemens Medical Solutions USA, Inc.$238
plus $764 from 10 others

What the payments were for

Travel & lodging$8518%
Food & beverage$9,34692%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
Boston Scientific	33	$4,197
Sirtex Medical Inc	37	$2,378
Trisalus Life Sciences, Inc.	21	$1,150
Biocompatibles, Inc.	10	$822
Penumbra, Inc.	5	$650
Siemens Medical Solutions USA, Inc.	2	$238
Delcath Systems	2	$156
Medtronic	1	$132
Shockwave Medical, Inc	1	$130
Fujifilm Wako Diagnostics U.S.A. Corporation	1	$101
Agiliti Health, Inc.	2	$77
Angiodynamics, Inc.	1	$50
Terumo Medical Corporation	1	$50
Cook Medical LLC	2	$38
Hologic Sales And Service, LLC	1	$18
Inari Medical, Inc.	1	$12

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

SIR-Spheres Microspheres$1,398
GENERAL EMBOLICS$1,238
OBSIDIO$851
TRINAV INFUSION SYSTEM$614
TheraSphere Y90 Glass Microspheres 7.0 GBq (US Commercial)$363
THERASPHERE-BIO$296
Indigo System$281
TheraSphere Y90 Glass Microspheres 10 GBq$269
Penumbra System$268
Indigo$201
ICEfx Cryoablation System$170
DIREXION$149
MicroThermX Microwave Ablation System$145
Hepzato Kit$135
IN.PACT Admiral$132
Vascular Lithotripsy$130
FATHOM$127
GENERAL VASCULAR INTERVENTION$121
Wako HCC Biomarker(s) DCP and AFP-L3$101

How this compares

$10,198 in reported general payments places this provider in the 90th percentile of 246 diagnostic radiology providers in Nevada.

See all diagnostic radiology providers in Nevada →

Medicare billing

Part B allowed, 2024

$196,784

Medicare patients

2,440

Services billed

6,984

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Other diagnostic radiology in Las Vegas

Mark WinklerLas Vegas$306K
Rajneesh AgrawalLas Vegas$145K
John OhLas Vegas$37K
Oleksandra KutsenkoLas Vegas$26K
Richard PenfilLas Vegas$26K
Julian HardmanLas Vegas$24K
Masters RichardsLas Vegas$23K
Rajiv ShahLas Vegas$18K
Ravishankar KonchadaLas Vegas$11K
Trey PhamLas Vegas$11K

See the full list for Nevada →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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